docs: def i4_bit_hi1(n):
      """
      i4_bit_hi1 returns the position of the high 1 bit base 2 in an integer.
  
      Example:
        +------+-------------+-----
        |    N |      Binary | BIT
        +------|-------------+-----
        |    0 |           0 |   0
        |    1 |           1 |   1
        |    2 |          10 |   2
        |    3 |          11 |   2
        |    4 |         100 |   3
        |    5 |         101 |   3
        |    6 |         110 |   3
        |    7 |         111 |   3
        |    8 |        1000 |   4
        |    9 |        1001 |   4
        |   10 |        1010 |   4
        |   11 |        1011 |   4
        |   12 |        1100 |   4
        |   13 |        1101 |   4
        |   14 |        1110 |   4
        |   15 |        1111 |   4
        |   16 |       10000 |   5
        |   17 |       10001 |   5
        | 1023 |  1111111111 |  10
        | 1024 | 10000000000 |  11
        | 1025 | 10000000001 |  11
  
      Parameters:
        Input, integer N, the integer to be measured.
        N should be nonnegative.  If N is nonpositive, the value will always be 0.
  
        Output, integer BIT, the number of bits base 2.
      """
      i = np.floor(n)
      bit = 0
      while i > 0:
          bit += 1
          i //= 2
      return bit